DevSecOps infrastructure engineer or Sr. Systems Engineer

CorGTA; Mississauga; On-site; CAD 90,000 - 120,000; Full time

Job summary

A leading technology company in Mississauga is seeking a Senior Infrastructure Engineer. This role involves designing, managing, and optimizing both on-premises and cloud-based environments. The ideal candidate will have over 5 years of experience in enterprise IT infrastructure, strong cloud management skills, and a focus on automation and operational excellence. This position offers a full-time employment opportunity with a collaborative work environment.

Qualifications

• 5 years of progressively responsible experience in enterprise IT infrastructure or operations.
• Strong background in multi-cloud platform management (Azure and AWS).
• Proficiency with automation and IaC technologies (Terraform, Ansible, PowerShell).
• Proven ability to solve complex IT problems related to automation, migration, cloud optimization, and virtualization.
• Strong communication and documentation skills with a collaborative and proactive work style.
• Deep sense of ownership, accountability and operational awareness.

Responsibilities

• Design, manage, and optimize on-premises and cloud environments (AWS, Azure).
• Implement Infrastructure-as-Code (IaC) using Terraform and Ansible.
• Review automation scripts and develop new ones to streamline operations.
• Collaborate with development and security teams to resolve infrastructure challenges.
• Perform root cause analysis on high-impact incidents.

Skills

Jenkins

Ruby

Python

Active Directory

Cloud

PowerShell

Windows

AWS

Linux

SAN

Java

Troubleshoot

Backup

Puppet

hardware

Tools

Terraform

Ansible

PowerShell

Job description

Senior Infrastructure Engineer

Overview

Were seeking a high-impact Infrastructure Engineer a true expert across the infrastructure spectrumwho thrives on automation modernization and operational excellence. This role will take ownership of designing managing and optimizing both on-premises and cloud-based environments (AWS Azure). Youll play a key part in automating manual workflows enhancing system reliability and driving continuous improvement across the organizations IT infrastructure.

Key Responsibilities

Automation & Infrastructure Modernization

Review existing automation scripts and develop or refine new ones to streamline operations and eliminate manual tasks.

Implement Infrastructure-as-Code (IaC) using Terraform and Ansible to provision configure and manage infrastructure efficiently.

Identify automation opportunities that drive performance reliability and operational scalability.

Cloud & Core Infrastructure Management

Manage and support multi-cloud infrastructure across AWS and Azure including compute networking storage IAM and monitoring.

Maintain and troubleshoot core systems : Active Directory VMware Windows Server OS Intune (Modern Workspace) and M365 .

Design and implement security standards and compliance configurations (e.g. cluster policies Key Vault audit logging).

Participate in incident problem and change management processes for infrastructure components.

Operational Excellence & Reliability

Perform root cause analysis (RCA) on recurring or high-impact incidents to ensure long-term stability.

Collaborate cross-functionally with development DevOps application support and security teams to resolve complex infrastructure challenges.

Participate in on-call rotation and provide after-hours support when needed.

Ensure strong documentation practices and adherence to compliance requirements.

Customer Support & Continuous Improvement

Provide responsive customer-focused technical support to internal teams and stakeholders.

Continuously assess the infrastructure landscape to identify opportunities for modernization performance tuning and cost optimization.

Champion best practices in system reliability automation and operational resilience.

Pillars of the Role

• Operational Excellence
• Automation and Modernization
• Customer Support
• Documentation and Compliance
• Strategy and Support

Top 3 Core Skills

Automation & Infrastructure-as-Code (IaC)

Expertise in scripting and automation tools such as PowerShell Terraform and Ansible .

Ability to streamline processes reduce manual effort and drive modernization across infrastructure environments.

Core Infrastructure Expertise

Deep hands-on experience with Active Directory VMware Windows Server InTune (Modern Workspace) Azure and AWS .

Proven troubleshooting and performance optimization capabilities in complex enterprise environments.

Operational Excellence & Security Mindset

Skilled in performing root cause analysis managing incident / problem / change processes and designing secure compliant systems.

Demonstrated ability to maintain reliability and resilience across systemseven those not originally built by you.

Qualifications & Experience

5 years of progressively responsible experience in enterprise IT infrastructure or operations.

Strong background in multi-cloud platform management (Azure and AWS).

Proficiency with automation and IaC technologies (Terraform Ansible PowerShell).

Proven ability to solve complex IT problems related to automation migration cloud optimization and virtualization.

Strong communication and documentation skills with a collaborative and proactive work style.

Deep sense of ownership accountability and operational awareness .

Key Skills

• Jenkins
• Ruby
• Python
• Active Directory
• Cloud
• PowerShell
• Windows
• AWS
• Linux
• SAN
• Java
• Troubleshoot
• Backup
• Puppet
• hardware

Employment Type: Full Time

Experience: years

Vacancy: 1